The cat is out of the bag as some stunning revelations have been made by the Saudi Crown PrinceMohammed bin Salman. According to his information which he mentioned in an interview to the Washington Post, the crown prince said that it was the West that initially asked Saudi Arabia to spread Wahhabism to counter the then-Soviet Union.
Wahhabism is an extreme form of Islam and the Western powers thought it would be an excellent tool to beat Soviet Russia. The Outlook has reported that this led to Saudi funding of Madrassas and construction of mosques all over the world to stop the rising tide of communism.

Fear of Russia

The crown prince has said that initial investments in mosques and Madrassas was routed through Pakistan but later the Saudi government gave money directly. The crown prince has admitted that money was also given to the Taliban.
Everything was going fine till the 9/11 attacks took place and the Western powers led by the USA and UK realized they had committed a blunder. The Taliban which they had created and supported had turned against them. The Saudis continued their funding at that time as it was not possible to backtrack at once. The fact remains that it was the Western powers led by Britain and the USA that encouraged the spread of the extreme form of Islam.